Active Topics
-
Porting apps to Leste (32)
to Maemo 7 / Leste by Arno_11 - 2 days, 10 hrs ago -
[ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900 (2,264)
to Maemo 5 / Fremantle by panjgoori - 4 days, 4 hrs ago -
Full linux distros on Sailfish OS (254)
to SailfishOS by qoh - 5 days, 2 hrs ago - more...
 |
|
2009-09-15
, 17:16
|
|
Posts: 2,355 |
Thanked: 5,249 times |
Joined on Jan 2009
@ Barcelona
|
#2
|
Originally Posted by marnanel
I'm also having those (DOSBox), and for now I have not yet identified the reason (to be honest I've not put too much though into the issue yet). So if you can guess why it seems to affect some apps only please tell
It has some keyboard focus issues which need seeing to.
Other than that, it's a cool app
| The Following User Says Thank You to javispedro For This Useful Post: | ||
 |
|
2009-09-15
, 17:18
|
|
Posts: 26 |
Thanked: 45 times |
Joined on Sep 2009
@ Philadelphia
|
#3
|
Originally Posted by javispedro
Thanks. Fixing window managers is rather an obsession of mine, so I'm certainly going to be looking at that after work tonight.
I'm also having those (DOSBox), and for now I have not yet identified the reason (to be honest I've not put too much though into the issue yet). So if you can guess why it seems to affect some apps only please tell
Other than that, it's a cool app
| The Following User Says Thank You to marnanel For This Useful Post: | ||
|
|
2009-09-15
, 19:58
|
|
Posts: 3,841 |
Thanked: 1,079 times |
Joined on Nov 2006
|
#4
|
Originally Posted by marnanel
Well, we have an ARM CPU in our toys, and ARM used to mean "Acorn Risc Machine", so maybe we have an implicit license to use Acorn material
[...] some serious thought would have to be given to copyright issues about the MOS, the DFS, and BASIC: you can't do anything without the MOS, you can't do much without BASIC, and life without the DFS is painful. But they are all still © Acorn, whoever that is these days.)
Just kidding (about the implicit license), but Acorn was behind not only the beloved Beeb but also the incredibly successful ARM CPU (almost 3 billion a year sold.. quite a lot more than Intel has managed so far).
__________________
N800/OS2007|N900/Maemo5
-- Metalayer-crawler delenda est.
-- Current state: Fed up with everything MeeGo.
N800/OS2007|N900/Maemo5
-- Metalayer-crawler delenda est.
-- Current state: Fed up with everything MeeGo.
|
|
2009-09-16
, 12:47
|
|
Posts: 26 |
Thanked: 45 times |
Joined on Sep 2009
@ Philadelphia
|
#5
|
Originally Posted by javispedro
Thank you
I'm also having those (DOSBox), and for now I have not yet identified the reason (to be honest I've not put too much though into the issue yet). So if you can guess why it seems to affect some apps only please tell
Other than that, it's a cool app
The problem is that there's a bit in WM_HINTS which (in both apps) isn't set. You can see this using "xprop -id 0x...":
For Beebem:
WM_HINTS(WM_HINTS):whereas for, say, mediaplayer we'd get:
bitmap id # to use for icon: 0x300000d
bitmap id # of mask for icon: 0x300000b
WM_HINTS(WM_HINTS):I believe this is a problem with libsdl, but I haven't dug down any further to find why it's not setting this bit.
Client accepts input or input focus: True
Initial state is Normal State.
window id # of group leader: 0x2c00001
| The Following User Says Thank You to marnanel For This Useful Post: | ||
 |
|
2009-09-16
, 13:38
|
|
Posts: 415 |
Thanked: 182 times |
Joined on Nov 2007
@ Leeds UK
|
#6
|
Whooa! Exile on the n900, that would be so cool!
__________________
Life on the edge....always waiting to fall
Life on the edge....always waiting to fall
|
|
2009-09-16
, 17:16
|
|
Posts: 2,355 |
Thanked: 5,249 times |
Joined on Jan 2009
@ Barcelona
|
#7
|
Originally Posted by marnanel
No, thank you instead, you're completely right (and sorry for dirtying your thread, but at least now I know I should probably file a bug about this...). The problem seems to be the missing WM_HINTS bit, but, while on DOSBox that bit is not set:
The problem is that there's a bit in WM_HINTS which (in both apps) isn't set. You can see this using "xprop -id 0x..."
Code:
... WM_CLASS(STRING) = "dosbox", "dosbox" WM_HINTS(WM_HINTS): bitmap id # to use for icon: 0xc0000d bitmap id # of mask for icon: 0xc0000b
Code:
... WM_CLASS(STRING) = "test-i386", "test-i386" WM_HINTS(WM_HINTS): Client accepts input or input focus: True
Yay, confirming: adding SDL_WM_SetIcon call makes the test case lose the input focus.
Last edited by javispedro; 2009-09-16 at 17:37. Reason: confirming
|
|
2009-09-16
, 17:40
|
|
Posts: 26 |
Thanked: 45 times |
Joined on Sep 2009
@ Philadelphia
|
#8
|
Originally Posted by javispedro
DOSBox (and BeebEm) have neither InputHint nor WM_TAKE_FOCUS, and the ICCCM says explicitly that this means "the client never expects keyboard input".
The problem seems to be the missing WM_HINTS bit, but, while on DOSBox that bit is not set:
One rather interesting point is that a very quick perusal of Metacity's sources seems to indicate that Metacity will give focus if WM_TAKE_FOCUS is present or InputHint is set. Matchbox2, however, appears to give focus if and only if InputHint is set (it only checks WM_TAKE_FOCUS in order to tell whether to send WM_TAKE_FOCUS when focussing a window).
According to the ICCCM, having WM_TAKE_FOCUS present but not InputHint means that a client "wants to prevent the window manager from setting the input focus to any of its windows", so Matchbox2 is technically correct here. It is possible, of course, that Metacity behaves that way because it solves some problem in a particular subset of clients, so perhaps it would be good to change Matchbox2's behaviour.
Either way, it wouldn't solve the current problem, since the SDL apps in question set neither WM_TAKE_FOCUS nor InputHint.
| The Following 3 Users Say Thank You to marnanel For This Useful Post: | ||
|
|
2009-09-16
, 17:41
|
|
Posts: 26 |
Thanked: 45 times |
Joined on Sep 2009
@ Philadelphia
|
#9
|
Originally Posted by javispedro
Woot, good catch!
Yay, confirming: adding SDL_WM_SetIcon call makes the test case lose the input focus.
|
|
2009-09-16
, 17:55
|
|
Posts: 2,355 |
Thanked: 5,249 times |
Joined on Jan 2009
@ Barcelona
|
#10
|
I believe this is "our man":
SDL_x11wm.c, line 232
As a workaround, ifdef'ing the SDL_WM_SetIcon call out will work, since Maemo gets the icons from other sources either way.
If you believe Matchbox is right here, then this is a SDL bug :S
Last edited by javispedro; 2009-09-16 at 17:58. Reason: fixed link
SDL_x11wm.c, line 232
As a workaround, ifdef'ing the SDL_WM_SetIcon call out will work, since Maemo gets the icons from other sources either way.
If you believe Matchbox is right here, then this is a SDL bug :S
Last edited by javispedro; 2009-09-16 at 17:58. Reason: fixed link
| The Following User Says Thank You to javispedro For This Useful Post: | ||
 |
| Tags |
| bbc micro, bugs, n900, sdl |
«
Previous Thread
|
Next Thread
»
|
All times are GMT. The time now is 21:13.
Ten minutes' hacking around brings the Beeb to the N900. It has some keyboard focus issues which need seeing to. Also, beebem uses f12 to bring up an emulator menu, and the N900 has no f12. But with a little work we could see Elite running on this thing.
(If this was ever a serious project, some serious thought would have to be given to copyright issues about the MOS, the DFS, and BASIC: you can't do anything without the MOS, you can't do much without BASIC, and life without the DFS is painful. But they are all still © Acorn, whoever that is these days.)